CN114907791A - Non-pneumatic tire bonding material and preparation method and application thereof - Google Patents
Non-pneumatic tire bonding material and preparation method and application thereof Download PDFInfo
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- CN114907791A CN114907791A CN202110180141.6A CN202110180141A CN114907791A CN 114907791 A CN114907791 A CN 114907791A CN 202110180141 A CN202110180141 A CN 202110180141A CN 114907791 A CN114907791 A CN 114907791A
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- 239000000463 material Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title description 8
- 239000006229 carbon black Substances 0.000 claims abstract description 45
- 229920001971 elastomer Polymers 0.000 claims abstract description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 20
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 20
- 229920001194 natural rubber Polymers 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 238000006735 epoxidation reaction Methods 0.000 claims abstract description 3
- 239000000853 adhesive Substances 0.000 claims description 28
- 230000001070 adhesive effect Effects 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 230000003712 anti-aging effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims description 7
- MHKLKWCYGIBEQF-UHFFFAOYSA-N 4-(1,3-benzothiazol-2-ylsulfanyl)morpholine Chemical compound C1COCCN1SC1=NC2=CC=CC=C2S1 MHKLKWCYGIBEQF-UHFFFAOYSA-N 0.000 claims description 2
- YLKFDHTUAUWZPQ-UHFFFAOYSA-N N-Nitrosodi-n-propylamine Chemical compound CCCN(N=O)CCC YLKFDHTUAUWZPQ-UHFFFAOYSA-N 0.000 claims description 2
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical compound C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 claims description 2
- 239000010692 aromatic oil Substances 0.000 claims description 2
- 239000011280 coal tar Substances 0.000 claims description 2
- REQPQFUJGGOFQL-UHFFFAOYSA-N dimethylcarbamothioyl n,n-dimethylcarbamodithioate Chemical compound CN(C)C(=S)SC(=S)N(C)C REQPQFUJGGOFQL-UHFFFAOYSA-N 0.000 claims description 2
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 2
- 239000005662 Paraffin oil Substances 0.000 claims 1
- 239000010734 process oil Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 14
- 239000004814 polyurethane Substances 0.000 description 14
- 229920002635 polyurethane Polymers 0.000 description 13
- 238000007599 discharging Methods 0.000 description 12
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 8
- HTSGKJQDMSTCGS-UHFFFAOYSA-N 1,4-bis(4-chlorophenyl)-2-(4-methylphenyl)sulfonylbutane-1,4-dione Chemical compound C1=CC(C)=CC=C1S(=O)(=O)C(C(=O)C=1C=CC(Cl)=CC=1)CC(=O)C1=CC=C(Cl)C=C1 HTSGKJQDMSTCGS-UHFFFAOYSA-N 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 235000021355 Stearic acid Nutrition 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 238000010009 beating Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 125000003700 epoxy group Chemical group 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 4
- 239000008117 stearic acid Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 125000004093 cyano group Chemical group *C#N 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 1
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004830 Super Glue Substances 0.000 description 1
- -1 accelerator DM Chemical compound 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- FGBJXOREULPLGL-UHFFFAOYSA-N ethyl cyanoacrylate Chemical compound CCOC(=O)C(=C)C#N FGBJXOREULPLGL-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- CMAUJSNXENPPOF-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-n-cyclohexylcyclohexanamine Chemical compound C1CCCCC1N(C1CCCCC1)SC1=NC2=CC=CC=C2S1 CMAUJSNXENPPOF-UHFFFAOYSA-N 0.000 description 1
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 1
- 239000010690 paraffinic oil Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J115/00—Adhesives based on rubber derivatives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention relates to a non-pneumatic tire bonding material which comprises the following components in parts by weight: the rubber composition contains 25 to 70 parts of carbon black, preferably 40 to 60 parts of carbon black, based on 100 parts of the total mass of the epoxidized natural rubber; 5-30 parts of white carbon black, preferably 5-20 parts; the epoxidation rate of the epoxidized natural rubber is 20 mol% to 75 mol%, preferably 25 mol% to 50 mol%. The bonding material disclosed by the invention has a very good bonding effect, is very environment-friendly, basically does not generate more harmful gas in the manufacturing process, and is an environment-friendly bonding material.
Description
Technical Field
The invention relates to the field of non-pneumatic tire bonding, in particular to a non-pneumatic tire bonding material and a preparation method and application thereof.
Background
The traditional automobile tires are mainly pneumatic tires, the air pressure of the pneumatic tires is essential for the bearing and comfort of the pneumatic tires, and although the pneumatic tires are widely applied, the pneumatic tires are prone to tire burst caused by high temperature, poor tire quality, overhigh or overlow air pressure, trauma, poor road conditions and the like. Especially, when the vehicle runs at high speed, the friction of the tire is multiplied, the temperature of the tire is quickly raised, and at the moment, if the air pressure is too high or too low, the pneumatic tire has the risk of tire burst at any time, which causes great harm to the life and property safety of people.
Patents US20040159385a1, US2018102560a1 etc. propose the concept of non-pneumatic tire, this structure has abandoned the atmospheric pressure structure of the traditional pneumatic tire, and then designed the non-pneumatic tire that is formed by several kinds of structures of wheel hub, spoke, shear band and tire tread, the wheel hub of this non-pneumatic tire is unanimous with the wheel hub function of the ordinary tire, its spoke can help absorbing the load, the shear band is equivalent to the pneumatic structure of the pneumatic tire, has played the effect of dispersing the load, thus can realize the advantage of the pneumatic tire and not the pneumatic structure, will not burst the tire.
Patents US20020124929a1, US20040187996a1 and others propose structurally supported tires, also belonging to non-pneumatic tires, which, like the above mentioned non-pneumatic tires, are constituted by a hub, a support, a shear band and a tread, also having the various advantages of non-pneumatic tires.
The non-pneumatic tire has superior structure and performance, but the polyurethane spokes have poor adhesion to the rubber shear band, so it is very important to improve the adhesion between the spokes and the rubber shear band.
The patent WO2019051493A1 proposes that cyanoacrylate adhesive is used for bonding the shear band and the spoke, WO2006002998A1 proposes that the adhesive for bonding the polyurethane and the rubber of the non-pneumatic tire is polyisocyanate compound, although the adhesive has higher bonding strength, the cyano-containing compound and the polyisocyanate are not only toxic, but also the adhesive necessarily needs a large amount of volatile organic solvent for dissolving, such as toluene, xylene and the like, and is not environment-friendly, and a large amount of VOC is generated in the manufacturing process, thereby causing great harm to human body.
Therefore, new environmentally friendly adhesive materials for bonding shear bands to spokes are highly desirable.
Disclosure of Invention
One purpose of the invention is to solve the problems that the adhesive used for bonding the non-pneumatic tire shear band and the spoke in the prior art has high toxicity, needs a large amount of volatile organic solvent to dissolve, is easy to cause environmental pollution and the like. The non-pneumatic tire bonding material has a good bonding effect, is very environment-friendly, does not generate more harmful gas basically in the manufacturing process, and is an environment-friendly bonding material.
The invention also aims to solve the problems of complex bonding method of the non-pneumatic tire shear band and the spoke, high cost and the like in the prior art, and provides a preparation method of the bonding material of the non-pneumatic tire.
In order to realize one of the purposes, the invention is realized by the following technical scheme: the invention relates to a non-pneumatic tire bonding material which comprises the following components in parts by weight: the rubber composition contains 25 to 70 parts of carbon black, preferably 40 to 60 parts, based on 100 parts of the total mass of Epoxidized Natural Rubber (ENR); 5-30 parts of white carbon black, preferably 5-20 parts; the epoxidation rate of the epoxidized natural rubber is 20 mol% to 75 mol%, preferably 25 mol% to 50 mol%.
In the technical scheme, the epoxidized natural rubber is at least one of ENR25 and ENR 50; more preferably ENR25 and ENR50, and the weight ratio of the ENR25 to the ENR50 is 0.5-50: ENR 25. ltoreq.2, preferably 0.5. ltoreq. ENR 50: ENR25 is less than or equal to 1. Epoxy groups in the epoxidized natural rubber and a small amount of hydroxyl groups have polarity, can chemically react with non-aerated polyurethane spokes to generate stable chemical bonds, and the epoxidized natural rubber can be co-vulcanized and bonded with tread rubber and has good bonding performance, and the proportion of the epoxy groups can be intentionally regulated and controlled by using the ENR25 and ENR50 in a mixed manner so as to meet the bonding performance and mechanical performance required by different practical applications.
In the above technical solution, the carbon black is carbon black commonly used in adhesive materials, and preferably at least one of carbon black N330, carbon black N550, carbon black N660, and carbon black N774; more preferably carbon black having a designation of N660.
In the above technical scheme, the white carbon black is the white carbon black commonly used in the adhesive material, and preferably at least one of white carbon black VN3, white carbon black 1165 and white carbon black HL-200. More preferably white carbon black having a trademark VN 3. Carbon black is a common reinforcing agent, white carbon black is not only a reinforcing agent of epoxidized natural rubber, but also a large number of hydroxyl groups are arranged on the surface of the white carbon black, and the hydroxyl groups can react with polyurethane to promote the adhesion performance.
In the above technical scheme, the adhesive material further comprises the following components in 100 parts by weight of the total epoxidized natural rubber:
in the above technical solution, the operating oil is at least one selected from naphthenic oil, paraffinic oil, aromatic oil and coal tar.
In the above technical solution, the antioxidant is commonly used in the adhesive material, and is preferably at least one of antioxidant 4020, antioxidant RD, antioxidant 4010NA, and antioxidant D.
In the above technical solution, the scorch retarder is at least one selected from the group consisting of a scorch retarder CTP, a scorch retarder PVI, and a scorch retarder NDPA.
In the above technical solution, the accelerator is selected from the group consisting of accelerators commonly used in bonding materials, preferably at least one of accelerator CZ, accelerator NOBS, accelerator D, accelerator DM, accelerator DZ, accelerator TMTD, and accelerator TMTM.
In order to achieve the second purpose, the invention is realized by the following technical scheme: the preparation method of the adhesive material comprises the steps of rolling the epoxidized natural rubber to form a rubber sheet; then adding the components including the carbon black and the white carbon black into the rubber sheet for mixing.
Preferably, the above method comprises the steps of: (1) passing the epoxidized natural rubber through a roller for 3-4 times on an open mill at the lowest roller spacing, and then discharging the epoxidized natural rubber into sheets at the roller spacing of 2-2.5 mm; (2) cutting the rubber sheet obtained in the step (1) into thin strips, putting the strips into an internal mixer, mixing for 1-1.5 minutes, sequentially adding zinc oxide, stearic acid, an anti-aging agent, a scorch retarder, carbon black, white carbon black and operating oil, and mixing for 5-8 minutes to obtain a rubber compound I; (3) beating 3-4 triangular bags on the first rubber compound on an open mill at the finest roll pitch, rolling 3-4 bags, and then discharging pieces with the length of 2-2.5mm to obtain a second rubber compound; (4) and (3) wrapping the rubber compound II on an open mill by a roller with a roller spacing of 1-2mm, adding sulfur and an accelerator, cutting the rubber compound II for 3-4 times respectively by a left cutter and a right cutter, discharging the rubber compound II, cooling and standing to obtain the adhesive material composition.
The invention also provides the application of the bonding material in the non-pneumatic tire, which comprises the step of using the bonding material for bonding the shear band and the spoke of the non-pneumatic tire.
In the technical scheme, a brush or a high-speed grinding wheel is used for cleaning the surface of the polyurethane spoke; attaching an unvulcanized adhesive material between the cured polyurethane spokes and the unvulcanized shear band rubber to ensure that the adhesive material is neatly attached; and heating the composition at 150 ℃ for 0.5-1h under the pressure of 10MPa to cure and bond the composition.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the epoxy group in the unvulcanized epoxidized natural rubber reacts with the hydroxyl group in the polyurethane subjected to surface treatment to form strong chemical adhesion, meanwhile, the unvulcanized epoxidized natural rubber can be attached to the unvulcanized rubber forming the shear band, the unvulcanized epoxidized natural rubber and the unvulcanized rubber are subjected to co-vulcanization at a certain pressure and temperature, the reaction of the epoxy group and the hydroxyl group and the co-vulcanization of the rubber can be simultaneously carried out at the same temperature and pressure, and the rubber does not contain toxic substances such as cyano compounds, organic solvents and the like, is environment-friendly, does not discharge excessive VOC, and can save a large amount of manufacturing time and cost.
Detailed Description
While the present invention will be described in conjunction with specific embodiments thereof, it is to be understood that the following embodiments are presented by way of illustration only and not by way of limitation, and that numerous insubstantial modifications and adaptations of the invention may be made by those skilled in the art in light of the teachings herein.
Example 1
The formula (mass portions) is as follows:
the preparation method and the application comprise the following steps: (1) passing ENR50 through a roller for 3 times on an open mill at the lowest roller spacing, and then discharging the sheet at the roller spacing of 2 mm; (2) cutting the ENR50 rubber sheet obtained in the step (1) into thin strips, putting the strips into an internal mixer, mixing for 1 minute, sequentially adding zinc oxide, stearic acid, an anti-aging agent 4020, an anti-scorching agent CTP, carbon black N660, white carbon black VN3 and naphthenic oil, and mixing for 8 minutes to obtain a rubber compound I; (3) beating the first rubber compound on an open mill for 3 triangular bags at the finest roll pitch, rolling for 3 rolls, and discharging pieces with the length of 2mm to obtain a second rubber compound; (4) wrapping the rubber compound II on an open mill at a roller spacing of 1mm, adding sulfur and a CZ promoter, cutting for 3 times respectively, discharging, cooling and standing to obtain the rubber composition. (5) Cleaning the surface of polyurethane by using a brush or a high-speed grinding wheel; (6) attaching an unvulcanized adhesive material between the cured polyurethane spokes and the unvulcanized shear band rubber to ensure that the adhesive material is neatly attached; (7) the composition is heated for 1h at 150 ℃ under the pressure of 10MPa to be cured and bonded, and the performance is tested.
The composite material obtained was then subjected to the peel test described in international standard ISO 8510-1: 1990(F), at 25 ℃ at ambient temperature, using a universal laboratory tensile machine, and the adhesive material prepared according to this example exhibited an extremely high peel strength, reaching 60 kN/m.
Example 2
The formula (mass portions) is as follows:
the method comprises the following steps: (1) passing ENR50 and ENR25 on an open mill for 3 times at the lowest roll spacing, and then discharging the sheets at the roll spacing of 2 mm; (2) cutting the ENR50 and ENR25 films obtained in the step (1) into strips, putting the strips into an internal mixer, mixing for 1 minute, sequentially adding zinc oxide, stearic acid, an anti-aging agent 4020, an anti-scorching agent CTP, N330 carbon black, VN3 white carbon black and naphthenic oil, and mixing for 8 minutes to obtain rubber compound I; (3) beating the first rubber compound on an open mill for 3 triangular bags at the finest roll pitch, rolling for 3 rolls, and discharging pieces with the length of 2mm to obtain a second rubber compound; (4) wrapping the rubber compound II on an open mill at a roller spacing of 1mm, adding sulfur and a CZ promoter, cutting for 3 times respectively, discharging, cooling and standing to obtain the rubber composition. (5) Cleaning the surface of polyurethane by using a brush or a high-speed grinding wheel; (6) attaching an unvulcanized adhesive material between the cured polyurethane spokes and the unvulcanized shear band rubber to ensure that the adhesive material is neatly attached; (7) the composition is heated for 0.5h at 150 ℃ under the pressure of 10MPa to be cured and bonded, and the performance is tested.
The composite material obtained was then subjected to the peel test described in international standard ISO 8510-1: 1990(F), at 25 ℃ at ambient temperature, using a universal laboratory tensile machine, and the adhesive material prepared according to this example exhibited an extremely high peel strength, reaching 55 kN/m.
Example 3
The formula (mass portions) is as follows:
the method comprises the following steps: (1) passing ENR50 and ENR25 on an open mill for 3 times at the lowest roll spacing, and then discharging the sheets at the roll spacing of 2 mm; (2) cutting the ENR50 and ENR25 films obtained in the step (1) into slivers, putting the slivers into an internal mixer, mixing for 1 minute, sequentially adding zinc oxide, stearic acid, an anti-aging agent 4020, an anti-scorching agent CTP, N660 carbon black, VN3 white carbon black and naphthenic oil, and mixing for 8 minutes to obtain a rubber compound I; (3) beating the first rubber compound on an open mill for 3 triangular bags at the finest roll pitch, rolling for 3 rolls, and discharging pieces with the length of 2mm to obtain a second rubber compound; (4) wrapping the rubber compound II on an open mill at a roller spacing of 1mm, adding sulfur and a CZ promoter, cutting for 3 times respectively, discharging, cooling and standing to obtain the rubber composition. (5) Cleaning the surface of polyurethane by using a brush or a high-speed grinding wheel; (6) attaching an unvulcanized adhesive material between the cured polyurethane spokes and the unvulcanized shear band rubber to ensure that the adhesive material is neatly attached; (7) the composition is heated for 1h at 150 ℃ under the pressure of 10MPa to be cured and bonded, and the performance is tested.
The composite material obtained is then subjected to a peel test as described in international standard ISO 8510-1: 1990(F), carried out at 25 ℃ at ambient temperature, using a universal laboratory tensile machine, the composite material prepared by the method of this example exhibits a high peel strength, which reaches 50 kN/m.
Comparative example 1
The embodiment in the prior art CN1981011A is selected for comparison, the peel strength of the embodiment in CN1981011A is 48kN/m, the embodiment 1 of the invention not only can reach 60kN/m and is far higher than the bonding strength of the embodiment in CN1981011A, toxic materials and VOC which cause hidden troubles to the environment are not generated in the preparation process, the waste is safe and environment-friendly, the adhesive material belongs to an environment-friendly adhesive material, the preparation speed is high, the process is simple, and the adhesive material not only can be applied to non-pneumatic tires, but also can be used for adhesion of other polyurethane and isoprene rubber.
Claims (10)
1. A non-pneumatic tire bonding material comprises the following components in parts by mass: the rubber composition contains 25 to 70 parts of carbon black, preferably 40 to 60 parts of carbon black, based on 100 parts of the total mass of the epoxidized natural rubber; 5-30 parts of white carbon black, preferably 5-20 parts; the epoxidation rate of the epoxidized natural rubber is 20 mol% to 75 mol%, preferably 25 mol% to 50 mol%.
2. The adhesive material according to claim 1, wherein: the epoxidized natural rubber is at least one of ENR25 and ENR 50; more preferably ENR25 and ENR50, the weight ratio of the ENR25 to the ENR50 is 0.5-50: ENR 25. ltoreq.2, preferably 0.5. ltoreq. ENR 50: ENR25 is less than or equal to 1.
3. The adhesive material according to claim 1, wherein: the carbon black is at least one of carbon black N330, carbon black N550, carbon black N660 and carbon black N774; the white carbon black is at least one of white carbon black VN3, white carbon black 1165 and white carbon black HL-200.
4. The adhesive material according to claim 1, wherein: the rubber composition also comprises the following components in parts by weight based on 100 parts of the total mass of the epoxidized natural rubber:
5. the bonding material according to claim 4, wherein: the process oil is at least one selected from naphthenic oil, paraffin oil, aromatic oil and coal tar.
6. The bonding material according to claim 4, wherein: the anti-aging agent is selected from at least one of anti-aging agent 4020, anti-aging agent RD, anti-aging agent 4010NA and anti-aging agent D.
7. The bonding material according to claim 4, wherein: the scorch retarder is at least one selected from the group consisting of a scorch retarder CTP, a scorch retarder PVI and a scorch retarder NDPA.
8. The bonding material according to claim 4, wherein: the promoter is at least one selected from a promoter CZ, a promoter NOBS, a promoter D, a promoter DM, a promoter DZ, a promoter TMTD and a promoter TMTM.
9. A method for preparing the adhesive material according to any one of claims 1 to 8, comprising passing the epoxidized natural rubber through a roll to form a sheet; then adding the components including the carbon black and the white carbon black into the rubber sheet for mixing.
10. Use of the bonding material according to any one of claims 1 to 8 in a non-pneumatic tire, comprising the use of the bonding material for bonding a shear band and a spoke of a non-pneumatic tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110180141.6A CN114907791B (en) | 2021-02-08 | Non-pneumatic tire bonding material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110180141.6A CN114907791B (en) | 2021-02-08 | Non-pneumatic tire bonding material and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114907791A true CN114907791A (en) | 2022-08-16 |
| CN114907791B CN114907791B (en) | 2024-04-26 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1981011A (en) * | 2004-07-07 | 2007-06-13 | 米其林构思与开发公司 | Adhesive system for the direct bonding of a cured polyurethane to crude rubber |
| CN103492514A (en) * | 2011-04-15 | 2014-01-01 | 株式会社普利司通 | Adhesive composition, adhesion method using same, layered body, and tire |
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1981011A (en) * | 2004-07-07 | 2007-06-13 | 米其林构思与开发公司 | Adhesive system for the direct bonding of a cured polyurethane to crude rubber |
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